I just want gcc and BSD, how can I do that?
To do this, I believe someone would have to write a modified version of the file /usr/ucb/cc which instead invokes gcc. Naming it, and finding a place for it would be two additional steps needed. It may make sense for diehard BSD fans to put such a modified script in their own ~/bin directory. That plus setting your paths as in section 5.1.4 should be about enough.